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NEET Biology Principle Of Inheritance And Variation Question Bank Linkage and Crossing Over

  • question_answer
    When synapsis is complete all along the chromosome, the cell is said to have entered a stage called [AIIMS 2005]

    A) Zygotene

    B) Pachytene

    C) Diplotene

    D) Diakinesis

    Correct Answer: B

    Solution :

    The synapsis, pairing of homologous chromosomes takes place during zygotene. Synapsis results in the formation of bivalents during zygotene. The formation of special proteinaceous structure called synaptonemal complex occur. After zygotene stage cell entered in pachytene stage in which the bivalents become spiralled, shortened and thickened.


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